检索结果-内蒙古大学图书馆

NAVAL ENGINEERS JOURNAL 1989年第5期101卷 53-58页

作者： FRINK, JG VERVEN, DM John G. Frink is an assistant group supervisor in the Fleet Systems Department of The Johns Hopkins University Applied Physics Laboratory. He received his B.S. degree in physics from Michigan State University in 1968 and the M.S. degree in computer science from the University of Maryland in 1971. Mr. Frink worked at the Naval Surface Weapons Center White Oak Laboratory on a variety of weapons systems before joining the Applied Physics Laboratory in 1978. Mr. Frink has supervised the development of a large scale battle group simulation that successfully employs the receiver selection paradigm described herein on a hardware suite composed of an extensible number of (currently 15) processors. David M. Verven is a senior electrical engineer in the Fleet Systems Department of The Johns Hopkins University Applied Physics Laboratory. He received the B.S. degree in electrical engineering from the University of Maryland College Park in 1979 and the M. S. degree in the same discipline from The Johns Hopkins University in 1984. Mr. Verven joined the Applied Physics Laboratory in 1979 and initially worked on analysis of Navy sensor systems. In 1981 he was the AN/SPS-49 test team leader for the New Threat Upgrade (NTU) combat system land-based test. In 1982 he became involved in the development of the BBWRS system. Currently he is involved in real-time computer program development for the CEP project.

This paper documents an experiment performed by The Johns Hopkins University Applied Physics Laboratory to measure the effect of inserting a data bus into a combat system. The experiment was conducted at the Aegis computer Center located at the Naval Surface Weapons Center in Dahlgren, Virginia (NSWC/DL). The purpose of the experiment was to determine whether or not the Aegis Weapon System (the core of the Aegis Combat System) could be operated with a portion of its point-to-point interelement cables replaced by a data bus. The data bus chosen for the experiment employs message broadcasting with receiver selection. A primary goal of the experiment was to minimize the amount of Aegis computer program changes required to accommodate the data bus. The results presented in this paper will show that the experiment was a success. Key certification tests were passed with no computer program changes to the tactical elements and minimal changes in the Aegis tactical executive (ATES) program (less than 110 words changed).

关键词： Data Transmission Equipment

来源：评论

学校读者我要写书评

暂无评论

DETERMINATION OF electrical ADMITTANCES OF BIOLOGICAL CELLS

引用

JOURNAL OF ELECTROSTATICS 1988年第2-3期21卷 225-244页

作者： TAKASHIMA, S ASAMI, K YANTORNO, RE Department of Bioengineering University of Pennsylavania Philadelphia PA 19104-6392 U.S.A. Department of Electrical Engineering College of Engineering Computer Science and Architecture Temple University Philadelphia PA 19122 U.S.A.

The methods of impedance or admittance measurements are discussed for a variety of biological cells. The aim of this paper is the description of the techniques of measurements and the analysis of systematic errors arising from electrode arrangements and measuring systems. Detailed discussion on the nature of membrane admittance of biological cells can be found elsewhere.

关键词： BIOLOGICAL MATERIALS

来源：评论

学校读者我要写书评

暂无评论

Modification operations in data base machines: Where are they? 88

Modification operations in data base machines: Where are the...

引用

16th ACM Annual Conference on computer science, CSC 1988

作者： Hurson, A.R. Miller, L.L. Department of Electrical Engineering Computer Engineering Program Pennsylvania State University University ParkPA16802 United States Department of Computer Science Iowa State University AmesIA50011 United States

ISBN: (纸本)0897912608

Advances in technology coupled with the inefficiency of the conventional von-Neumann type architecture in handling database systems have motivated the design and implementation of the so called database machines. Unfortunately, a majority of the proposed database machines have neglected to address proper procedures for modification operations. This negligence is partially due to the complexity of the operations and low performance of the database architectures in handling modification operations. First, the implementation of the modification operations in some database machines is overviewed. Second, we will address the mechanisms in which the relational database machine ASLM handles the modification operations. Finally, our approach is compared against the other proposed approaches in the literature. © 1988 ACM.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Applications of signal and image processing to medicine

Applications of signal and image processing to medicine

引用

IEEE International Symposium on Circuits and Systems (ISCAS)

作者： D. Graupe Department of Electrical Engineering & Computer Science and Department of Bioengineering University of Illinois Chicago USA

A tutorial is presented on the applications of signal and image processing to medicine that covers both one- and multidimensional signals, such as EEG, ECG, IR, ultrasound signals, etc., and two- and three-dimensional images, such as CAT scanners, MRI magnetic resonance imaging, ultrasound images, holographic images, etc. The analysis problems covered range from the inverse scattering problem through signal/image enhancement in noise and filtering, parameter identification, pattern discrimination and recognition, coding, and data reduction to visualization and 3-D manipulation.< >

关键词： Signal processing Image processing Biomedical imaging Ultrasonic imaging Magnetic resonance imaging Multidimensional signal processing Electroencephalography Electrocardiography X-ray tomography Holography

来源：评论

学校读者我要写书评

暂无评论

computer ST segment measurement during transesophageal atrial pacing stress

Computer ST segment measurement during transesophageal atria...

引用

computers in Cardiology (CinC)

作者： H. Jadvar J. Jenkins R. Arzbaecher Bioengineering Program and Department of Electrical Engineering and Computer Science University of Michigan Ann Arbor MI USA Pritzker Institute of Medical Engineering IIT Center Chicago IL USA

Transesophageal atrial pacing (TAP) has been proposed as a noninvasive alternate modality of cardiac stress for patients who cannot perform an adequate exercise stress test. Present computer methods for processing the exercise ECG are inadequate in analyzing the unique surface ECG recorded during a TAP stress procedure. This is due to the presence of large simulator-induced pacing artifacts which confound computer beat identification. The authors have developed hardware to suppress the large pacing artifact, and a software method to detect the R wave, determine sustained capture, and calculate beat-by-beat and average ST-segment level, St slope, R-wave amplitude, and instantaneous RR interval and heart rate. They employ five different computer methods (single-point, average, weighted-average, linear least-squares and parabolic least-squares) in ST-segment measurements. They demonstrate the deficiency of present exercise ECG computer methods in processing the ECG during stress and show the significantly enhanced performance of their own technique on real ECG data.< >

关键词： Stress measurement Electrocardiography Heart rate Biomedical engineering Performance evaluation Hardware Heart rate detection Testing Electronic circuits Frequency

来源：评论

学校读者我要写书评

暂无评论

A conference key distribution system based on the Lagrange interpolating polynomial

A conference key distribution system based on the Lagrange i...

引用

IEEE Annual Joint Conference: INFOCOM, IEEE computer and Communications Societies

作者： E.-H. Lu W.-Y. Hwang L. Harn J.-Y. Lee Department of Electrical Engineering National Cheng Kung University Tainan Taiwan Computer Science Program University of Missouri Kansas City Kansas City MO USA

A conference key distribution system (CKDS) can provide a common secret communication key to a set of M stations. A CKDS based on Lagrange interpolating polynomial is introduced. It is easy to see that breaking this system is equivalent to break the Diffie-Hellman public-key distribution system. This conference key is selected by the conference chairstation and hidden in the Lagrange interpolating polynomial. Recovering this key by each participating station only requires M-1 multiplications and M-2 additions over a finite field GF(P).< >

关键词： Lagrangian functions Polynomials Cryptography Public key computer science Cities and towns Galois fields electrical resistance measurement

来源：评论

学校读者我要写书评

暂无评论

Infornation Modeling and Analysis of Event Related Potentials

引用

IEEE Transactions on Biomedical engineering 1987年第12期BME-34卷 928-937页

作者： William J. Williams Howard Shevrin Robert E. Marshall Electrical Engineering and Computer Science Department and the Bioengineering Program University of Michigan Ann Arbor MI USA Department of Psychiatry and Psychology University of Michigan Ann Arbor MI USA Department of Neurology University of Michigan Ann Arbor MI USA

An approach to the analysis of event related potentials (ERP) based on information theory is described. The amount of information in cortical potentials evoked by words briefly presented by tachistoscope is measured by a transinformation method. The inputs to the communication channel are four word categories. One category is composed of pleasant words, another of unpleasant words, both drawn from the Osgood semantic differential research, and two categories are composed of word stimuli related to a psychiatric patient's complaints. The patients chosen for study exhibit either phobias or pathological grief reactions. The method allows ERP's to be mapped into transinformation profiles that reveal time intervals during the poststimulus ERP favorable to the transmission of information concerning the word category presented. The transinformation model results for actual and synthetic data are discussed.

关键词： Enterprise resource planning Mutual information Psychology Voltage Information analysis Information theory Communication channels Pathology Biomedical engineering Psychiatry

来源：评论

学校读者我要写书评

暂无评论

An automated medical record system for a skilled nursing facility

引用

Journal of Medical Systems 1987年第5期11卷 367-380页

作者： Weiler, Philip G. Thorpe, Linda Walters, Richard Chiriboga, David From the Department of Community Health Center for Aging and Health United States the Department of Electrical and Computer Engineering Division of Computer Science University of California Davis United States D-M Information Systems Inc. United States the Clinical Gerontology Program School of Allied Health Sciences University of Texas United States

This paper reports on the development of an on-line automated medical record system suitable for nursing homes. The software was written in standard MUMPS (Massachusetts General Hospital Utilities Multi-programming System) and is easy for the first-time user to operate. The data managed by the system may be divided into four major components, including text tables, the hierarchical problem dictionary, the patient admission data, and the care plan data. The system met all of the project's objectives and has been enthusiastically received by the nursing home staff. © 1987 Plenum Publishing Corporation.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Deadlock detection algorithms in distributed database systems 2

Deadlock detection algorithms in distributed database system...

引用

2nd IEEE International Conference on Data engineering, COMPDEC 1986

作者： Elmagarmid, Ahmed K. Sheth, Amit P. Liu, Hing T. Computer Engineering Program Department of Electrical Engineering Penn. State Univ. United States Honeywell Computer Science Center Golden ValleyMN United States Department of Computer and Information Science Ohio State University United States

In this paper, a centralized deadlock detection algorithm with multiple outstanding requests (CDDMOR) is proposed for use in distributed database systems and transaction-processing systems. This algorithm allows a process to request many resources simultaneously. While a centralized scheme is superior to a completely distributed scheme in terms of performance, a major problem of such a scheme is congestion. Therefore, an important extension to the basic CDDMOR, a partially distributed scheme, is proposed to alleviate the problem of congestion, as well as to take advantage of the result presented by several researchers that global (multisite) deadlocks are infrequent. It takes care of the local (single site) deadlocks without involving other sites and uses centralized deadlock detection only when there is a possibility of global deadlock. © 1986 IEEE.

关键词： Distributed database systems

来源：评论

学校读者我要写书评

暂无评论

Deadlock detection algorithms in distributed database systems

Deadlock detection algorithms in distributed database system...

引用

International Conference on Data engineering

作者： Ahmed K. Elmagarmid Amit P. Sheth Hing T. Liu Computer Engineering Program Department of Electrical Engineering Penn. State Univ. Honeywell Computer Science Center Golden Valley MN Computer Engineering Program Department of Electrical Engineering Penn. State Univ Department of Computer & Information Science The Ohio State University

关键词： System recovery Detection algorithms Resource management Database systems computers Image edge detection

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：